“This planet was once an uninhabitable star.
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But one day ‘Thea’ turned it into a blue planet.
It is full of water and is conducive to the development of life.”
Earth is the only known habitable planet in the universe (at this time) that has liquid water. There is a stable atmosphere. And there are also basic minerals that help make living things together. However, the important point is These elements were not with the world from the beginning.
Hydrogen, carbon, and sulfur are all elements that evaporate easily, especially when the temperature is near the sun. They therefore did not condense into the solid material that became the early Earth and existed only in a gaseous state. These important substances are therefore very little present, causing many scientists to question whether When and how did Earth become a habitable planet?
World history measuring clock
The team used a combination of isotopic and elemental data from meteorites and terrestrial rocks. These are manganese and chromium. To reconstruct the Earth’s formation process, researchers were able to constrain the timing of how Earth’s chemical composition compares to other planets in the system.
Calculations reveal that early Earth had as little such as the inner planets Mercury, Venus and even Mars. But the numbers changed 4,561 million years ago.
“A high-precision time measurement system based on the radioactive decay of manganese-53. It is used to determine the precise age,” Kruttach explains. “This isotope was present in the early solar system and decayed to chromium-53. It has a half-life of approximately 3.8 million years.”
The method is accurate to within 1 million years or less, which is an extremely high precision range for objects billions of years old. “Our solar system formed approximately 4,568 million years ago, considering that it took only 3 million years for Earth’s chemistry to be determined. It was surprisingly fast,” Kruttach added.
The research team determined that many of the elements present on Earth were delivered at one time. Instead of a continuous meteor shower Which is likely to have a different age according to the rocks in each area. What is special is that it corresponds to what was generally accepted at the time. Earth was hit by an object similar in size to Mars, Theia.
This event caused the material to break apart and form the moon that orbits the Earth today. The team says this consistency is difficult to ignore, especially if Theia formed in the outer solar region. It is very likely that there will be only basic elements. Although it evaporated somewhat due to the enormous heat upon impact,
But those elements may still be left behind enough to make the world ‘wet’. The research team concluded that Today’s planets are likely made up of 90 percent material from early Earth, 10 percent from Theia, and 0.4 percent from later material.
“Based on the results of our study, So we know that prehistoric Earth was originally a dry rocky planet. Therefore, it can be assumed that only the collision with Theia brought the volatile elements to Earth. And in the end, it allows living things to survive,” Kruttach said.
Preciousness that is hard to find in the universe
If Kruttach and Professor Klaus Mezger, one of the researchers, are right, The chances of Earth becoming a habitable planet are very high as a result of that event. And the chances of finding life on other planets are also much less.
Because it needs to be Unusual ‘specific events’ such as such collisions with outer objects deliver essential minerals.
“The chances of anything coming from the outer reaches beyond Mars are one in a million,” Kruttach said.
“This clearly shows that hostility towards life in the universe is not uncommon,” Mezger added.
Search and compile
Witit Borompichaichartkul
Origin
How did it first appear on Earth 4 billion years ago?
